f/overrides/event-backup/fsskx-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00

455 B

1DateDividends
22022-12-210.212000
32011-12-280.003000
42013-12-132.296000
52016-12-090.409000
62021-12-220.994000
72019-12-302.963000
82025-12-304.288000
92010-12-100.185000
102012-12-140.101000
112012-12-280.008000
122017-12-261.698000
132012-10-220.229000
142014-12-124.143000
152020-12-303.013000
162008-12-050.259000
172009-12-040.186000
182010-12-300.003000
192011-12-090.183000
202015-12-111.754000
212018-12-281.681000
222023-12-201.454000
232024-12-303.845000